I have to insist on this.
A friend of mine, who is currently an elder (so am I, but will soon fade), once confessed to me that the most important thing for him is that his children grow drug-free, violence-free, and so forth (that type of thinking is, of course, the result of the WT indoctrination process, which divides the world in two: JW here and Satan's people there). In other words, for many witnesses the issue is not if this is the true religion or not; it is a matter of how do I get through the night?